TeaWeb/shared/js/ui/react-elements/LoadingDots.tsx

27 lines
862 B
TypeScript

import {useEffect, useState} from "react";
import * as React from "react";
export const LoadingDots = (props: { maxDots?: number, speed?: number, textOnly?: boolean, enabled?: boolean }) => {
let { maxDots, speed } = props;
if(!maxDots || maxDots < 1)
maxDots = 3;
const [dots, setDots] = useState(0);
useEffect(() => {
if(typeof props.enabled === "boolean" && !props.enabled)
return;
const timeout = setTimeout(() => setDots(dots + 1), typeof speed === "number" ? speed : 500);
return () => clearTimeout(timeout);
});
let result = ".";
for(let index = 0; index < dots % maxDots; index++)
result += ".";
if(props.textOnly)
return <>{result}</>;
return <div style={{ width: (maxDots / 3) + "em", display: "inline-block", textAlign: "left" }}>{result}</div>;
};